You have opened a project. There are revision markers in the project. Utilities > Revision control > Property comparison of projects > Delete revision.
In this dialog you can delete revision data and markers produced during a property comparison of projects.
The following dialog elements are available:
If this check box is selected, all revision markers generated after a property comparison of projects, are deleted. Both the marker text and the graphical marker on the page are deleted.
Revision data of property comparison:
If this check box is selected, then the revision data that was generated after a property comparison in the project and the modified pages is deleted. This includes, for example, information about the associated reference projects.
See also